Etablissements Léon Vanderhulst, 54, rue d' Artois Bruxelles
Built mopeds powered by 49cc Sachs, and also by their own engines. There is also a reference to powered bicycles built in 1949.
A 1950 advertisment mentioned Type Sport and Type Grand Luxe. Moped production was discontinued in 1962.
Sources: A-Z der Belgische Motoren, Wikipedia NL, nl.wikisage.org.